I cleaned the window that was dirty with soot.

Yuu believed in divine help from God.

His heart was enveloped in sorrow enough to break.

He worked all night to finish the job he had begged for.

What is the solution to this problem?

He attached his name tag to his jacket.

The ceremony to distribute the awards is scheduled for next week.

We are gathering tonight for a banquet with friends.

By conducting this experiment, we will verify our hypothesis.

There is a state-of-the-art electron microscope in my laboratory.